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157238015007 = 3471115163227
BaseRepresentation
bin1001001001110000011…
…1011011010000011111
3120000212012001202212110
42102130013123100133
510034010412440012
6200122324205103
714234335034553
oct2223407332037
9500765052773
10157238015007
116075883aa37
1226582839793
1311a9ac8c888
147878b87863
15415426173c
hex249c1db41f

157238015007 has 8 divisors (see below), whose sum is σ = 214111339776. Its totient is φ = 102595016792.

The previous prime is 157238014987. The next prime is 157238015009. The reversal of 157238015007 is 700510832751.

157238015007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157238015007 - 216 = 157237949471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157238015009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557581473 + ... + 557581754.

It is an arithmetic number, because the mean of its divisors is an integer number (26763917472).

Almost surely, 2157238015007 is an apocalyptic number.

157238015007 is a deficient number, since it is larger than the sum of its proper divisors (56873324769).

157238015007 is a wasteful number, since it uses less digits than its factorization.

157238015007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115163277.

The product of its (nonzero) digits is 58800, while the sum is 39.

Adding to 157238015007 its reverse (700510832751), we get a palindrome (857748847758).

The spelling of 157238015007 in words is "one hundred fifty-seven billion, two hundred thirty-eight million, fifteen thousand, seven".

Divisors: 1 3 47 141 1115163227 3345489681 52412671669 157238015007